| How Chaos inspires other disciplines | Feb 7, 2008 | Lecture organized by Society for Creativity and Innovation at Harvard College (general audience) | Slides [PDF, 44Meg], Annotations to lecture [PDF],[Media for Ipod, 220Meg] |
| The oldest unsolved problem in mathematics | Dec 2, 2007 | Math Circle at Northeastern University | Handout [PDF], Slides [PDF][Media for Ipod] |
| The structure from motion problem | October 29, 2007 | Colby Colloquium (undergraduate level) | Slides [PDF] |
| On the mathematics of panorama photography | July 11, 2007 | Math NOW series of Harvard Summer school (precalculus level) | Slides [PDF] |
| Mathematics and AI | Apr 1, 2007 | Math Circle at Northeastern University | Handout [PDF][Media for Ipod] |
| ICTM 07: Benefits and Risks of Media and Technology in the Classfoorm | Feb 15-18, 2007 | ICTM Boston, 2007 | 9 slides and paper draft [PDF] |
| A lecture on Diophantine equations | Apr 30, 2006 | Math Circle at Northeastern University | Handout [PDF] |
| First lectures in Calculus Teaching | Sep 13, 2005 | Harvard University | Movie clips [Flash] |
| Number theory in dynamical system | Nov. 5, 2004 | Tufts Colloquium | Slides [PDF] |
| A multivariable Chinese remainder theorem and Diophantine approximation | Apr 11, 2005 | Brandeis Colloquium | Slides [PDF],Multivariable Chinese remainder theorem [PDF],Curve approximation theorem |
| Pitfalls in Calculus teaching and learning | 5/20/05 | Harvard University | Draft [HTML],[PDF] |
| An hour on complex numbers | September 2004 | Math Warm Up Series |
Handout [PDF],Problems [PDF]Slides [PDF] |
| Applications of Subharmonic functions | Feb, 2004 | Mathtable | Handout [PDF] |
| Webpedagogy Seminar | January 2004 | Harvard University | Slides [PDF] |
| Fashion in Mathematics | May 2004 | Math Circle | Handout [PDF] |
| Billiards | November 2003 | Math Circle | Handout [PDF] |
| Enriching teaching with technology | Aug 11, 2003 | Harvard University | Draft [PDF] |
| On a notion of Integrability | March 2002 | UAB Conference | Notes [PDF] |
| Open problems in Hamiltonian dynamics | October 19, 2000 | Montana State University Bozeman | [HTML],[PDF],[GIF] |
| Billiards | December 1999 | Harvard University (my interview talk of December 17th) | Handout [PDF],Ellipse property[PDF] |